Ball and Roller Bearings by NTN Corporation JapanView 19 Pages high speed bearing grease by NTN Corporation Japan [Page 12] - bearing selection 2 bearing selection rolling element bearings are ... and sizes when selecting the correct bearing for your application it is important to ... performance characteristics for each bearing type is shown in table 2.1 as a general ... for selecting the most appropriate bearing is shown in the following flow chart 2. ... 1 bearing selection flow chart procedure ... confirmation items selection of bearing type and configuration confirm ... and operating environment select bearing type and configuration select bearing ... dimensions select bearing tolerances function and construction of ... components to house bearings bearing mounting location bearing load ... direction and magnitude rotational speed vibration and shock load bearing ... limitations refer to page insert 28 bearing load magnitude direction vibration ... [Page 70] - allowable speed 9 allowable speed as bearing speed increases the temperature of the ... bearing also increases due to friction heat ... generated in the bearing interior if the temperature continues ... start to fail down drastically and the bearing can no longer continue to operate in a ... stable manner therefore the maximum speed at which it is possible for the bearing ... limits is called the allowable speed r/min the allowable speed of a bearing ... depends on the type of bearing bearing dimensions type of cage load ... and cooling conditions the allowable speeds listed in the bearing tables for grease ... oil lubrication are for standard ntn bearings under normal operating conditions ... conditions p 0.09c fa fr 0.3 for ball bearings with contact seals llu type the ... |
Precision Rolling Bearings by NTN Corporation JapanView 17 Pages high speed bearing grease by NTN Corporation Japan [Page 7] - precision rolling bearings page technical data contents 1 ... classification of precision rolling bearings for machine tools q main spindle ... bearings w ball screw support bearings 2 4 2 4 15 5 7 11 14 21 16 20 21 26 22 ... 32 33 37 38 47 40 41 47 53 48 48 50 1 2 bearing selection and shaft housing design q ... bearing selection w bearing accuracy e bearings and rigidity r designing bearing and ... housing 5 3 load rating and life q bearing life w static load rating and allowable ... axial load 16 4 allowable speed 5 bearing arrangements and structures of bearings ... for main spindles qwerqwertyuio bearing arrangement for main spindles bearing ... selection based on bearing arrangement for main spindle adjustable ... preload bearing unit bearing jacket cooling system 22 6 handling of ... [Page 8] - 1 classification of precision rolling bearings for machine tools 1 main spindle ... bearings table .1 types of precision rolling ... bearings for machine tools bearing type standard cross section bearing ... 78c 79 u 5s-79 u 70 u 5s-70 u 72c high-speed 2la-hse9 5s-2la-hse9 bearing bore mm ... contact angle remarks ¡a bearing type code containing a suffix u means ... an ultage series bearing optimized interior structure and resin ... with bore diameter of 10 to 130 mm ¡bearings with prefix 5s have ceramic balls ¡ ... for the interior structure lead to higher speed rigidity and reliability ¡ ... bearings with prefix 5s have ceramic balls ¡ ... small diameter ceramic balls to achieve higher speed and limited heat buildup ¡ ... bearings with prefix 5s have ceramic balls ¡ ... |
Angular Contact Ball Bearings for Radial Loads by NTN Corporation JapanView 20 Pages high speed bearing grease by NTN Corporation Japan [Page 1] - ntn main spindle bearings main spindle bearings 9 angular contact ball bearings for ... loads contents 9 angular contact ball bearings for radial loads 56 213 q features of ... types 56 w standard cage design 58 e bearing designations 58 r bearing accuracy 60 t ... preload of duplex angular contact ball bearings 62 y recommended fit for angular ... contact ball bearings 68 u duplex angular contact ball ... bearings 68 i duplex arrangement codes of duplex ... angular contact ball bearings 69 o flush grinding and universal ... matching 69 !0 angular contact ball bearings with ceramic balls 70 !1 operating life ... of bearings with ceramic balls 71 !2 recommended ... 72 !3 standard angular contact ball bearings 79u and 70u types 73 !4 high-speed ... angular contact ball bearings hse type 74 !5 super high-speed angular ... [Page 3] - ntn main spindle bearings eco-friendly air-oil lubricated angular ... ball bearings hsl and hsfl types for eco-friendly air ... -oil lubricated angular contact ball bearings hsl and hsfl types the angle of the ... in addition these angular contact ball bearings are dedicated to airoil lubrication by ... nozzle they accommodate the same high speed as hse and hsf types while being more ... air and oil the accuracies of these bearing types are jis class 5 or better for the ... designed eco-friendly nozzle sealed bearings standard grease-lubricated sealed ... angular contact ball bearings 79llb/70llb types the standard grease- ... lubricated sealed angular contact ball bearings are available in 79 and 70 series non- ... are mounted on both sides and special grease is used as a result these bearings ... |
Cylindrical Roller Bearing by NTN Corporation JapanView 9 Pages high speed bearing grease by NTN Corporation Japan [Page 2] - ntn main spindle bearings 10 cylindrical roller bearings in a ... cylindrical roller bearing the rollers and raceways are in linear ... contact consequently this type of bearing can support a larger radial load than a ... point-contact ball bearing also its structure is suitable for high ... -speed operation a cylindrical roller bearing used for the main spindle of a machine ... 2 single-row cylindrical roller bearings single-row cylindrical roller bearings ... are available in two types high-speed n10hs type and ultra highspeed n10hsrt6 ... type the n10hs type bearings have high-strength machined brass cages while the n10hsr ... type bearings have special molded resin cages which ... can be used for both grease lubrication and air-oil lubrication the ... n10hslt6 type is a variation from the high-speed n10hsrt6 type bearing and can be used ... [Page 10] - ntn main spindle bearings 9 ultra high speed double row cylindrical roller bearings ... nn30hsrt6 type nn30hsrt6 ultra high speed double row cylindrical roller bearings ... have higher operating speed with the same level of rigidity and ... capacity as the conventional series bearing design features 1 optimized internal ... design to realize high speed and low temperature rise 2 molded peek ... cage is used for high speed under grease air-oil lubrication and grease life ... fig 10.4 nn30hsrt6 type permissible speed range dmn value 106 0 0.2 0.4 0.6 0.8 1 ... .0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 grease lubrication air-oil lubrication ... nn30hsrt6 notes permissible speed of each bearing dmn value varies ... of the machine for which the bearing is used motor drive system cooling ... |
Needle Roller Bearings by QBC Quality Bearings & ComponentsView 5 Pages high speed bearing grease by QBC Quality Bearings & Components [Page 1] - bearing finder home page open end needle roller ... bearings · for 1/8 to 1 inch hardened shafts rc ... · 52100 hardened chrome steel needle bearing · low carbon steel bearing cage · case- ... w o.d bore features · · · · extremely high speed high load capacity low profile ... lightweight caged caged needle bearings offer up to 3x the speed of uncaged ... · · · · extremely low rolling friction high lubrication capacity low sensitivity to ... misalignment needles have high length to diameter ratios catalog ... 2495 .3125 3120 w 000 010 limiting speed rpm load capacities lbs dynamic static ... on the next page inch limiting speeds shown apply to oil lubrication with ... grease 60 of the given values are permissible ... for available inner rings closed end bearings available on special order 122 ... [Page 2] - bearing finder home page open end needle roller ... bearings · for 1/8 to 1 inch hardened shafts rc ... · 52100 hardened chrome steel needle bearing · low carbon steel bearing cage · case- ... w o.d bore features · · · · extremely high speed high load capacity low profile ... lightweight caged caged needle bearings offer up to 3x the speed of uncaged ... · · · · extremely low rolling friction high lubrication capacity low sensitivity to ... misalignment needles have high length to diameter ratios catalog ... o.d shaft diameter w 000 010 limiting speed rpm load capacities lbs dynamic static ... on the next page inch limiting speeds shown apply to oil lubrication with ... grease 60 of the given values are permissible ... for available inner rings closed end bearings available on special order 123 ... |
Angular Contact Ball Bearings for Axial Loads by NTN Corporation JapanView 4 Pages high speed bearing grease by NTN Corporation Japan [Page 2] - ntn main spindle bearings 11 angular contact ball bearings for ... types ntn provides a range of thrust bearings for the main spindles this includes ... 5629 and 5620 series for high axial rigidity contact angle 60° and ... hta ua series high-speed duplex angular contact ball bearings ... design contact angle 40° 30° these bearings are used in conjunction with nn30 nn49 ... series double-row cylindrical roller bearings matched bearings must have the same ... 11.1 types of angular contact ball bearings for axial loads 5629 and 5620 series ... hta0u a db hta9u a db series bearing type initial contact angle cage ... material 60 high-strength machined brass cage these series can ... is enhanced the structure of these bearings limits them to grease-lubricated ... 40 30 molded resin machined phenolic high-strength machined copper alloy cage these duplex ... [Page 7] - ntn main spindle bearings 7 shaft and housing fits fits given in ... recommended for angular contact ball bearings for axial loads to maintain high ... is essential the fit of the housing and bearing should be same as that for cylindrical ... roller bearings since an angular contact ball bearing ... used together with a cylindrical roller bearing checking concentricity of outside ... diameter of outer ring after bearing controlling concentricity of outer ring ... shown in fig 11.1 and 6 handling of bearings 2 mounting in the technical data ... note 1 target the median value 2 for high-speed applications where dmn value exceeds 0. ... specifications angular contact ball bearings for axial loads are usually used with ... grease lubrication or air-oil lubrication ... lubrication methods are described below grease lubrication air-oil lubrication ¡ ... |
Miniature and Instrument Bearing Catalog by NHBB New Hampshire Ball BearingsView 3 Pages high speed bearing grease by NHBB New Hampshire Ball Bearings [Page 40] - oil is the basic lubricant for ball bearings nhbb offers both petroleum-based and ... wider temperature/viscosity properties grease is an oil to which a thickener has been ... impossible the operative properties of grease depend almost wholly on the choice of ... other factors being equal the use of grease instead of oil results in higher ... and running torques and can limit the bearing to lower speeds solid film lubricants ... temperature range 25° to 250°f · greases with petroleum oil bases have high dn ... light to heavy loads and moderate to high speeds synthetic lubricants · wide ... range 112° to 400°f · stable at high temperatures · chemically inert · low ... [Page 42] - and their recommended uses when ball bearings are ordered without a specified ... lube l-245x oil and lg68 royco 27 grease the standard quantity of oil varies ... with bearing size but is approximately one drop 3 ... 6mg per bearing up to r-2 size and two drops 612mg for ... larger sizes the standard quantity of grease is 30 ± 5 of the bearing s internal ... oil ly115 fluorinated oil -30 to +550 high temperature stability good lubricity ... properties general purpose grease lg20 synthetic grease -65 to +250 lg68 ... synthetic grease -100 to +275 corrosion resistance heavy ... loads high speed ly17 synthetic non-silicone grease ... synthetic hydrocarbon grease -65 to +350 specialty lube high speed/ ... high temp inhibits oxidation anti-wear ... torque ly48 -65 to +350 ly75 mineral grease -20 to +350 longer life under high ... |
Roller Bearings by RBC BearingsView 2 Pages high speed bearing grease by RBC Bearings [Page 22] - due to lower stiffness bearing inner and outer rings usually conform ... for the intended application the bearing operating clearance should be checked ... supplied shaft is an integral part of bearings without an inner ring and must meet at ... requirements for rolling element bearings surface hardness of hrc 58 min surface ... to 0.050 deep this figure depends on bearing dimensions and load with sufficient ... important purposes in rolling element bearings they · protect bearing surfaces from ... and raceways · carry heat out of the bearing contact area · form a barrier grease ... · remove wear particles from the bearing lack of lubrication or inadequate ... the single most common cause of bearing failure 6.1 grease lubrication the ... following check list may be helpful in grease selection · suitability for the ... [Page 23] - primary function is to protect the bearing from contamination the relubrication ... period a visual examination of the bearings may indicate the need for more grease ... when much of the grease collar in the seal area has been lost ... the maximum recommended quanitity of grease in a roller bearing is a function of ... operating speed pumping a high speed bearing full of grease will cause overheating ... possibly grease loss after melting and eventual bearing ... table 5 provides a guideline for grease fill as a percent of free interior ... bearing space versus the operating speed n as a percent of limiting speed nl ... visual examination of the bearing for compliance is sufficient operating ... speed n slow medium high very high percent of speed limit nl n 10 nl 10 ... |
Nice Ball Bearings by RBC BearingsView 2 Pages high speed bearing grease by RBC Bearings [Page 6] - 1600 seriestm precision ground radial bearings recision ground 1600 seriestm bearings ... to provide a line of low cost yet high quality bearings for adaptation to a ... majority of precision bearing applications they are made in easy to ... for medium loads and for maximum speeds in the range of 5000 rpm the 1600 ... seriestm bearings are precision ground on all surfaces ... used to increase the range of allowable speeds by reducing ball-to-ball contact ... friction the 1600 seriestm radial bearings are available open single or doubled ... double sealed and double shielded bearings are supplied grease packed as standard ... open and single closure bearings can be supplied greased on request p ... bearing number principal dimensions bore d in ... 0.3438 8.733 3 weights given are for greased and sealed versions 4 4 1638 and larger ... [Page 8] - 1600 seriestm precision ground radial bearings con t recision ground 1600 seriestm ... bearings are specially designed to provide a ... line of low cost yet high quality bearings for adaptation to a majority of ... precision bearing applications they are made in easy to ... for medium loads and for maximum speeds in the range of 5000 rpm the 1600 ... seriestm bearings are precision ground on all surfaces ... used to increase the range of allowable speeds by reducing ball-to-ball contact ... friction the 1600 seriestm radial bearings are available open single or doubled ... double sealed and double shielded bearings are supplied grease packed as standard ... open and single closure bearings can be supplied greased on request p ... bearing number principal dimensions bore d in ... |
Miniature Bearings for Hobby Recreation & Industry by Boca BearingsView 2 Pages high speed bearing grease by Boca Bearings [Page 30] - use midas touch when installing new bearings or to preserve your existing bearings ... you need midas touch to protect your bearings whether you re an offshore racer scale ... boater midas touch will keep your bearings shipshape 1 oz $5.95 4 oz $13.95 1 ... also wreck havoc on unprotected engine bearings which is why winning drivers use midas ... easy to use squeeze bottle midas wheel bearing pre-soak solution specially formulated ... standard r/c car and truck wheel bearings begin by soaking bearings in mineral ... or brake cleaner for 1/2 hour blow bearings dry with compressed air next submerge ... bearings in pre-soak for 30 minutes allow the ... bearings to drip dry and then apply your ... 1 oz $5.95 4 oz $13.95 midas reel grease bonds to the metal to create a nearly ... parts of the reel midas heli rotor grease bonds to the metal to create a nearly ... [Page 35] - inline skate kits for quick rotation bearings available in sets of 20 16 pieces kit ... set includes 32 seals 5cc multi purpose grease and instructions $19.95 $39.95 $24.95 $ ... set includes 40 seals 5cc multi purpose grease and instructions $29.95 midas touch ... 5 abec 7 fast faster fastest ultimate speed bearing cleaner 4 oz 6.95 all ... purpose grease 2oz 7.95 6 oz 13.95 high ... speed instrument oil 5cc 6.95 12cc ... |
RBC Roller Tech Paper by RBC BearingsView 2 Pages high speed bearing grease by RBC Bearings [Page 3] - ring roller guidance in full complement bearings adjacent rollers rub against each other ... in opposing directions as a result the grease film on the roller surface experiences ... tends to deteriorate the quality of the grease through oxidation the amount of shear ... cam follower figure 4 that means the grease charge in cylindrical roller cam ... vectors vri stationary stud r2 area of grease shear on start-up these cam followers ... purge excess amounts of grease through the gap seals once that process ... support thrust forces if they are too high the washer wears or in a worst case ... the centrifugal force from purging the grease additionally the contacting lip seals ... keep grease inside the bearing and seal on ground bearing quality ... surfaces figure 4 grease shear in full complement roller ... [Page 5] - and shortens the life of needle bearing cam followers and compromises the ... -thrust ratio is fine there are some high-load high-speed applications where the ... is sufficient to break down the grease and cause bearing failure extensive ... 50°f cooler than their needle roller bearing counterparts figure 13 a cooler ... running bearing is a bearing that lasts longer deg f point-a 90 80 ... tracks the coefficient can reach as high as 0.3 which under heavy load can ... applications that ratio can be as high as 20 ... |
Ball Bearings Shield and Seal Types by NTN Corporation JapanView 2 Pages high speed bearing grease by NTN Corporation Japan [Page 4] - ntn ball bearings shield and seal types 1 grooved type ... surface of the v acts to seal in the grease the inner lip of a double-lip seal is ... will be maintained and as a result bearing service life will be noticeably ... hard surface-coating this assures long bearing service life and minimal noise levels ... inner ring 1 bearing design and features seal/shield bearing ... types and selection table 1 bearing design and futures type code no shield ... lists double shielded and double sealed bearings but single shielded z and single sealed ... lb lu lh are also available grease lubrication should be used with single ... shielded and single sealed bearings performance comparison torque dust ... proofing water proofing high speed capacity allowable temp.range 1 very ... [Page 6] - ntn ball bearings shield and seal types 3 service life of ... prelubricating grease the service life of filled grease is ... is even a considerable difference by grease brands keeping this in mind figure 3 ... presents a scale for determining grease service life it is based on actual and ... experimental data and applies to high-quality grease used in ball bearings under ... the working temperature increases the grease life of course becomes shorter although ... not accurate for all greases figure 3 is valid in general for ... apply to calcium-soap and aluminum-soap greases limiting speed is 11000 r/min use the ... value for zz or llb even if the bearings of llu specifications divide cr by the ... this point b the bore diameter d of the bearing is 30 find this value on scale and ... |
Needle Roller Bearings by NTN Corporation JapanView 1 Page high speed bearing grease by NTN Corporation Japan [Page 49] - is to prevent a lubricant held in a bearing from leaking outside the bearing and to ... content etc from invading into the bearing from outside it is very important to ... condition economical merit etc so that bearing running is not inversely affected by ... the sealing device the bearing seals are mainly classified into non- ... foreign matter from outside by holding grease in the oil groove labyrinth seal this ... seal having a high sealing effect due to its multi-stage ... and long passage is mainly used for grease lubrication generally it is suited to ... high speed bearing running but it has a dust-proofing ... effect even under low speed running if the seal grooves are filled ... up with grease it is convenient if this seal is ... provided with a grease nipple in oil lubrication this seal has ... |
RC Engine Bearing 2007 by Boca BearingsView 1 Page high speed bearing grease by Boca Bearings [Page 81] - lube 100ml spray bottle for use as a bearing lube or an engine additive to improve ... can be used as an after-run oil road grease power road grease power lightning lube ... can be used as an after-run oil heli grease power heli grease power lightning lube ... can be used as an after-run oil marine grease power marine grease power lightning ... performance and reduce corrosion reel grease power reel grease power lightning lube ... continuous surface protection bike grease power bicycle grease power lightning ... and reduce corrosion go-kart grease power go-kart grease power lightning ... bottle tetrachloride and silicone free bearing cleaner high speed oil high speed oil ... f to +400°f and a viscosity of 1875/9cs grease power grease power lightning lube 2oz ... |
RC Car & Truck Bearing 2007 by Boca BearingsView 1 Page high speed bearing grease by Boca Bearings [Page 122] - lube 100ml spray bottle for use as a bearing lube or an engine additive to improve ... can be used as an after-run oil road grease power road grease power lightning lube ... can be used as an after-run oil heli grease power heli grease power lightning lube ... can be used as an after-run oil marine grease power marine grease power lightning ... performance and reduce corrosion reel grease power reel grease power lightning lube ... continuous surface protection bike grease power bicycle grease power lightning ... and reduce corrosion go-kart grease power go-kart grease power lightning ... bottle tetrachloride and silicone free bearing cleaner high speed oil high speed oil ... f to +400°f and a viscosity of 1875/9cs grease power grease power lightning lube 2oz ... |
MX Engine Bearing 2008 by Boca BearingsView 1 Page high speed bearing grease by Boca Bearings [Page 22] - lube 100ml spray bottle for use as a bearing lube or an engine additive to improve ... can be used as an after-run oil road grease power road grease power lightning lube ... can be used as an after-run oil heli grease power heli grease power lightning lube ... can be used as an after-run oil marine grease power marine grease power lightning ... performance and reduce corrosion reel grease power reel grease power lightning lube ... continuous surface protection bike grease power bicycle grease power lightning ... and reduce corrosion go-kart grease power go-kart grease power lightning ... resists corrosion clean touch 728 high speed oil high speed oil lightning lube ... bottle tetrachloride and silicone free bearing cleaner grease power grease power ... |
RC Car & Truck Cross Reference Bearing Guide by Boca BearingsView 1 Page high speed bearing grease by Boca Bearings [Page 16] - pa g e 1 6 back boca bearing car truck kit cross reference guide ... use midas touch when installing new bearings or to preserve your existing bearings ... you need midas touch to protect your bearings whether you re an offshore racer scale ... boater midas touch will keep your bearings shipshape 1 oz 5.95 4 oz 13.95 1 oz ... also wreck havoc on unprotected engine bearings which is why winning drivers use midas ... to use squeeze bottle midas touch wheel bearing pre-soak solution specially formulated ... standard r/c car and truck wheel bearings begin by soaking bearings in mineral ... or brake cleaner for 1/2 hour blow bearings dry with compressed air next submerge ... bearings in pre-soak for 30 minutes allow the ... bearings to drip dry and then apply your ... .95 1 oz 5.95 4 oz 13.95 midas train grease bonds to the metal to create a nearly ... |
Large Ball and Roller Bearing Design Guide by NHBB New Hampshire Ball BearingsView 1 Page high speed bearing grease by NHBB New Hampshire Ball Bearings [Page 10] - purpose instrument oil low volatility high temperature stability lo2 mil-l-6085 - ... 550°f lg20 beacon 325 diester synthetic grease petroleum grease -65°f to 250°f ... nonchanneling general purpose grease nlgi 2 channeling smooth running long ... life with minimum migration nlgi 4 high speed high temp specialty lube spindle ... instrument and aircraft bearings nlgi 2 nonchanneling wide temperature ... 2 general purpose low volatility nlgi 2 high temperature stability nlgi 2 wide ... temperature range vacuum applications high speed spindle quality grease nlgi 2 ... -20°f to 250°f ly17 rheotemp 500 ester grease -65°f to 400°f ly48 mobil 28 petroleum ... grease synthetic mil-g-81322 -85°f to 350°f ... lg4 aeroshell 22 petroleum grease synthetic mil-g-81322 -85°f to 350°f ... |
Thin Section Ball Bearings by RBC BearingsView 1 Page high speed bearing grease by RBC Bearings [Page 37] - features r bc manufactures many custom bearings designed to optimize bearing ... your rbc sales engineer for your custom bearing needs challenge us there are many ... clearance of a thin section ball bearing will need to be predetermined if ... a temperature differential across the bearing for housing and shaft materials that ... change operating characteristics of the bearing radial preloaded bearings are measured ... prior to preload materials the standard bearings shown in the catalog have sae 52100 ... rings and balls rbc thin section ball bearings can be manufactured from other ... specialty bearing steels to provide corrosion resistance ... high temperature capability alternative load ... rbc has manufactured thin section ball bearings from sae 440c stainless steel to ... material special rbc thin section ball bearings have been manufactured from aluminum ... |
Hydro dynamic Pressure Bearings by QBC Quality Bearings & ComponentsView 1 Page high speed bearing grease by QBC Quality Bearings & Components [Page 1] - bearing finder new home page hydro-dynamic ... pressure bearings · laminated aluminum-silicon alloy ... shaft guide bearing plates · stainless steel case seal ... metric hydro-dynamic pressure bearing fulfills the need for a long-lasting ... and economical bearing capable of highspeed quiet operation which is suitable for ... printers laptop computers toys etc the bearings are formed by stacking petal-shaped ... steel case with a polyureathickened grease containing antioxidant and ... faces act as the bore of the assembled bearing the inner faces of the plates ... sheet for the case and the seal the bearing provides 30 less weight than an ... equivalent size precision ball bearing with dimensions similar to those of ... precision ball bearings these bearings can be used at speeds up to 20000 rpm ... |
